Media
Auto-advancing
Size
4"
Impedance
4Ω
RMS Power
40W
EBP
134
Vented alignment
Vd
20cm³
T/S Parameters
Valid
Fs54Hz
Qts0.35
Qes0.40
Qms3.1
Vas3.1L
Re3.2Ω
Le0.97mH
BL5.2Tm
Sd50cm²
Mms10g
Xmax4.0mm
Power40W
Impedance4Ω
F Low55Hz
F High5Hz
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
soundimports
£14.68
inc VAT
Dimensions & Physical
Diameter116.1mm
Overall Depth65.0mm
Cutout Diameter93.0mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
Dayton Audio
TCP115-4
4"
Best current price
£14.68
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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